Библиотека SQL Server Latches

Библиотека SQL Server Latches

В этом посте представлены все классы Latches, начиная с SQL Server 2005, дана детальная информация о каждом из них. Эту библиотеку создал Paul Randal, она является единственной в своём роде.

Для того, чтобы понять какие виды ожиданий преобладают на вашем сервере, вам достаточно выполнить следующий запрос (будьте внимательны, информация представлена за весь период с прошлой перезагрузки экземпляра):

После определения преобладающих ожиданий, найдите его в списке в этом посту и перейдите по ссылке. Всё описание на английском.

Люди, которые помогают создавать библиотеку: Jonathan Kehayias, Erin Stellato, Tim Radney, Anthony Nocentino, Arun Sirpal

Оригинал статьи

SQL Server Latch Classes


A

ACCESS_METHODS_ACCESSOR_CACHE
ACCESS_METHODS_BULK_ALLOC
ACCESS_METHODS_CACHE_ONLY_HOBT_ALLOC
ACCESS_METHODS_COLUMN_CACHE_SHARING
ACCESS_METHODS_DATASET_PARENT
ACCESS_METHODS_HOBT
ACCESS_METHODS_HOBT_COUNT
ACCESS_METHODS_HOBT_FACTORY
ACCESS_METHODS_HOBT_VIRTUAL_ROOT
ACCESS_METHODS_INDEX_BUILD_ALLOCATION
ACCESS_METHODS_IOAFF_KEY_RANGE_GENERATOR
ACCESS_METHODS_IOAFF_KEY_TARGET_PAGE_CNT
ACCESS_METHODS_IOAFF_QUEUE
ACCESS_METHODS_IOAFF_READAHEAD
ACCESS_METHODS_IOAFF_READAHEAD_QUEUE
ACCESS_METHODS_IOAFF_WAITING_WORKER_QUEUE
ACCESS_METHODS_KEY_RANGE_GENERATOR
ACCESS_METHODS_SCAN_RANGE_GENERATOR
ACCESS_METHODS_STRING_COMPARE
ALLOC_CACHE_MANAGER
ALLOC_CREATE_FREESPACE_CACHE
ALLOC_CREATE_RINGBUF
ALLOC_EXTENT_CACHE
ALLOC_FREESPACE_CACHE
ALLOC_IAM_PAGE_RANGE_CACHE
APPEND_ONLY_STORAGE_FIRST_ALLOC
APPEND_ONLY_STORAGE_INSERT_POINT
APPEND_ONLY_STORAGE_MANAGER
APPEND_ONLY_STORAGE_UNIT_MANAGER
ASYNC_TRANSPORT_MULTI_SESSION


B

BACKUP_FILE_HANDLE
BACKUP_INSTANCE_ID
BACKUP_LOG_REDO
BACKUP_MANAGER
BACKUP_MANAGER_DIFFERENTIAL
BACKUP_OPERATION
BACKUP_RESULT_SET
BACKUP_TAPE_POOL
BLOB_ACCESS_LEASE_RENEWAL
BUFFER
BUFFER_POOL_GROW


C

CHECK_PRINT_RECORD
CLR_DATAT_ACCESS
CLR_PROCEDURE_HASHTABLE
CLR_UDT_HASHTABLE
CLR_UDX_STORE
CLR_XVAR_PROXY_LIST
COLUMNSTORE_ATTRIB_CACHE
COLUMNSTORE_INDEX_BUILD
COLUMNSTORE_LOAD_DELETE_BUFFERS
COLUMNSTORE_LOAD_METADATA
COLUMNSTORE_OBJECT
COLUMNSTORE_ROWGROUP_COLLECTION
CSIBUILD_HASHDICT_BUCKET
CSIBUILD_HASHDICT_GLOBAL
CSIBUILD_STRINGSTORE_GLOBAL


D

DATABASE_AUTONAME_MANAGER
DATABASE_CHECKPOINT
DATABASE_MIRRORING_CONNECTION
DATABASE_MIRRORING_MANAGER_COMMAND
DATABASE_MIRRORING_REDO
DATABASE_MIRRORING_SERVER
DATABASE_MIRRORING_STREAM
DBCC_CHECK_AGGREGATE
DBCC_CHECK_RESULTSET
DBCC_CHECK_TABLE_INIT
DBCC_CHECK_TRACE_LIST
DBCC_FILE_CHECK_OBJECT
DBCC_FS_FILE_CHECK_STATE
DBCC_HASH_DLL
DBCC_MULTIOBJECT_SCANNER
DBCC_OBJECT_METADATA
DBCC_PERF
DBCC_PFS_STATUS


E

EVENTING_CACHE


F

FCB
FCB_REPLICA
FGCB_ADD_REMOVE
FGCB_ALLOC
FILE_MANAGER
FILEGROUP_MANAGER
FILESTREAM_ALLOCATION_MANAGER
FILESTREAM_CONTAINER_HEADER
FILESTREAM_DFS_ROOT
FILESTREAM_DOWNLEVEL_LOGGING
FILESTREAM_FCB
FILESTREAM_FILE_MANAGER
FILESTREAM_GHOST_FILES
FT Compidx mg
FULLTEXT_ADMIN
FULLTEXT_AMDIN_COMMAND_CACHE
FULLTEXT_CRAWL_CATALOG
FULLTEXT_CRAWL_DM_LIST
FULLTEXT_CRAWL_LOG
FULLTEXT_DOCUMENT_ID
FULLTEXT_DOCUMENT_ID_NOTIFY
FULLTEXT_DOCUMENT_ID_TRANSACTION
FULLTEXT_FILE_MANAGER
FULLTEXT_LANGUAGE_TABLE
FULLTEXT_LOGS


G

GHOST_CLEANUP_SYNC_MANAGER


H

HADR_BACKUP_LOCK_RESQUEUE_TABLE
HADR_BACKUP_TASK_TABLE
HADR_XDES_TABLE
HOBT_LOBPAGEINFO


K

KTM_VIRTUAL_CLOCK


L

LOG_MANAGER
LOGBLOCK_GENERATIONS


M

METADATA_CLONE_ACCESS_TICKET
METADATA_SEQUENCE_GENERATOR
MSQL_TRANSACTION_MANAGER


N

NESTING_TRANSACTION_FULL
NESTING_TRANSACTION_READONLY
NESTING_TRANSACTION_READONOY


Q

QUERY_OPTIMIZER_ID_MANAGER
QUERY_OPTIMIZER_VD_MANAGER
QUERY_OPTIMIZER_VIEW_REP
QUERY_STORE_ACCESS_CACHE


R

RECOVERY_BAD_PAGE_TABLE
RECOVERY_MANAGER


S

SECURITY_ACCESS_CHECK_CACHE
SECURITY_ASYMMETRIC_KEY_INIT
SECURITY_CERTIFICATE_INIT
SECURITY_CRYPTO
SECURITY_EXECUTE_AS_ENCRYPTION_TOKEN_CREATE
SECURITY_EXECUTE_AS_ENCRYPTION_TOKEN_INIT
SECURITY_KEY_LIST
SECURITY_KEY_RING
SECURITY_OBJPERM_CACHE
SECURITY_OPERATION_RULE_TABLE
SECURITY_PRIMARY_LOOKUP
SECURITY_ROW_LEVEL_SECURITY_CACHE
SECURITY_USER_INSTANCE
SECURITY_XPCMDSHELL
SERVICE_BROKER_DISPATCHER
SERVICE_BROKER_FORWARDING_MGR
SERVICE_BROKER_MAP_MANAGER
SERVICE_BROKER_MIRROR_ROUTE
SERVICE_BROKER_READ_CACHE
SERVICE_BROKER_TRANSMISSION_INIT
SERVICE_BROKER_TRANSMISSION_STATE
SERVICE_BROKER_TRANSMISSION_TRANSACTION_DATA
SERVICE_BROKER_TRANSMISSION_UPDATE
SERVICE_BROKER_TRANSMISSION_WORK
SERVICE_BROKER_TRANSMISSION_WORKTABLE
SERVICE_BROKER_TRANSMITTER
SERVICE_BROKER_TRANSMITTER_ASB
SERVICE_BROKER_TRANSMITTER_EVENTS
SERVICE_BROKER_TRANSPORT
SERVICE_BROKER_TRANSPORT_MEMORY_NOTIF
SERVICE_BROKER_TRANSPORT_TIMER_EVENTS
SERVICE_BROKER_WAITFOR_MANAGER
SERVICE_BROKER_WAITFOR_TRANSACTION_DATA
SPACE_CACHES_MANAGER
SPACEMGR_ALLOCACHE_CREATE_RINGBUF
SPACEMGR_ALLOCEXTENT_CACHE
SPACEMGR_CREATE_FREESPACE_CACHE
SPACEMGR_CREATE_RINGBUF
SPACEMGR_FREESPACE_CACHE
SPACEMGR_IAM_PAGE_RANGE_CACHE
SYNC_DBTABLE


T

TRACE
TRACE_AUDIT_ID
TRACE_CONTROLLER
TRACE_EVENT_QUEUE
TRACE_ID
TRANSACTION_DISTRIBUTED_MARK
TRANSACTION_OUTCOME
TRANSACTION_WORKSPACE_MANAGER


U

UTILITY_DATABASE_DROP
UTILITY_DEBUG_FILESTREAM
UTILITY_DYNAMIC_MANAGER_VIEW
UTILITY_DYNAMIC_VECTOR
UTILITY_LOCK_INFORMATION
UTILITY_SPARSE_BITMAP


V

VERSIONING_STATE
VERSIONING_STATE_CHANGE
VERSIONING_TRANSACTION
VERSIONING_TRANSACTION_CHAIN
VERSIONING_TRANSACTION_LIST


X

XFCB_CREDENTIAL
XFCB_CREDENTIAL_MANAGER
XFCB_LATCH_RENEWAL
XSTORE_CREDENTIAL
XSTORE_CREDENTIAL_MANAGER

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